Parse error: syntax error, unexpected ';', expecting ']'

Приветствую!Помогите справится, не заходит в админку! Выдаёт ошибку:

Parse error: syntax error, unexpected ';', expecting ']' in C:\Users\User\OpenServer\domains\invest\backend\config\main.php on line 66

А именно в самом конце файла main.php:

return [
    'id' => 'app-backend',
    'basePath' => dirname(__DIR__),
    'controllerNamespace' => 'backend\controllers',
    'bootstrap' => ['log'],
    'modules' => [],
    'components' => [
        'request' => [
            'csrfParam' => '_csrf-backend',
            'cookieValidationKey' => $params['cookieValidationKey'],
        ],
        'user' => [
            'identityClass' => 'common\models\User',
            'enableAutoLogin' => true,
            'identityCookie' => [
                'name' => '_identity', 
                'httpOnly' => true, 
                'domain' => $params['cookieDomain'],
        ],
        'session' => [
            'name' => '_session',
            'cookieParams' => [
                'domain' => $params['cookieDomain'],
                'httpOnly' => true,
            ],
        ],
        'log' => [
            'traceLevel' => YII_DEBUG ? 3 : 0,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
        'errorHandler' => [
            'errorAction' => 'site/error',
        ],
        'backendUrlManager' => require __DIR__ . '/urlManager.php',
        'frontendUrlManager' => require __DIR__ . '/../../frontend/config/urlManager.php',
        'urlManager' => function () {
            return Yii::$app->get('backendUrlManager');
        }, 
    ],
    /*Доступ только для залогированного пользователя*/
    'as access' => [
        'class' => 'yii\filters\AccessControl',
        'except' => ['auth/login', 'site/error'],
        'rules' => [
            [
             'allow' => true,
             'roles' => ['@'],
            ],
        ],
    ],
    'params' => $params,
];